Hi
I am trying to test ReportWriter with ASP.net Core 2.0 as webservice (.net core based webservice)
I have issue with writer creating 0 byte exported files.
Referenced assemblies are from c:\Program Files (x86)\Syncfusion\Essential Studio\16.1.0.24\Assemblies\.NET Standard 2.0\
I tried the same with ASP.NET MVC 4.6.1, it works properly
The referenced assemblies are V 16.1450.0.24
The report use is attached
Please let me know what I am missing
Ajay
<code>
[HttpPost]
public FileResult ExportReport([FromForm] string report_name, [FromForm] string exporttype)
{
var _m_report_name = report_name;
var _content_type = "application/octet-stream";
var _report_name = _m_report_name + @".rdl";
var _report_path_name = @"~/UserContent/Reports/" + _report_name;
var writerFormat = exporttype;
if (null == exporttype)
{
writerFormat = "PDF";
_content_type = "application/pdf";
}
if (String.Empty == exporttype)
{
writerFormat = "PDF";
_content_type = "application/pdf";
}
var _server_root = ((IHostingEnvironment)HttpContext.RequestServices.GetService(typeof(IHostingEnvironment)));// EQ to .MapPath(_report_path_name);
var _report_mapped_path = _server_root.MapPath(_report_path_name);
if (!System.IO.File.Exists(_report_mapped_path))
{
return null;
}
var fileName = String.Empty;
WriterFormat format;
using (var reportWriter = new ReportWriter(_report_mapped_path))
{
//reportWriter.ReportProcessingMode = ProcessingMode.Local;
reportWriter.ReportProcessingMode = ProcessingMode.Remote;
var _file_ext = ".xls";
format = WriterFormat.Excel;
if (writerFormat == "PDF")
{
_file_ext = ".pdf";
format = WriterFormat.PDF;
_content_type = "application/pdf";
}
else if (writerFormat == "Word")
{
_file_ext = ".doc";
format = WriterFormat.Word;
}
else
{
_file_ext = ".xls";
format = WriterFormat.Excel;
}
fileName = String.Concat(_m_report_name, DateTime.Now.Date.ToString("_yyyyMMdd"), _file_ext);
var _temp_file = Path.Combine(_server_root.MapPath("~/App_Data"), fileName);//path is mapped correctly
var _test_file = Path.Combine(_server_root.MapPath("~/App_Data"), "test.txt");
try
{
if (System.IO.File.Exists(_temp_file))
{
System.IO.File.Delete(_temp_file);
}
using (FileStream _temp_file_fs = System.IO.File.Create(_test_file))
{
using (StreamWriter writer = new StreamWriter(_temp_file_fs))
{
writer.WriteLine("Example 1 written"); //No problem here
}
}
//Create the file.
using (FileStream _temp_file_fs = System.IO.File.Create(_temp_file))
{
reportWriter.Save(_temp_file_fs, format); //0 byte file created }
var response = File(_temp_file, _content_type);// // error file not found to client
return response;
}
catch (Exception Ex)
{
return null;
}
}
}</code>
Attachment:
GroupingAgg_4300bd51.7z
